Achelous River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Achelous River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Achelous River today is 18.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| OCT 15 | 20.2°C | 16.0°C | |
| OCT 16 | 20.1°C | 16.0°C | |
| OCT 17 | 18.9°C | 16.0°C | |
| OCT 18 | 19.0°C | 16.0°C | |
| OCT 19 | 19.1°C | 16.0°C | |
| OCT 20 | 18.6°C | 16.0°C | |
| OCT 21 | 18.6°C | 16.0°C | |
| OCT 22 | 18.1°C | 16.0°C | |
| OCT 23 | 16.0°C | 18.6°C | |
| OCT 24 | 16.0°C | 18.4°C | |
| OCT 25 | 16.0°C | 18.3°C | |
| OCT 26 | 16.0°C | 18.2°C | |
| OCT 27 | 16.0°C | 18.0°C | |
| OCT 28 | 16.0°C | 17.9°C | |
| OCT 29 | 16.0°C | 17.8°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 6°C | 9°C | 12°C |
| February | 6°C | 9°C | 12°C |
| March | 6°C | 9°C | 12°C |
| April | 9°C | 13°C | 18°C |
| May | 13°C | 18°C | 22°C |
| June | 17°C | 21°C | 26°C |
| July | 18°C | 23°C | 29°C |
| August | 19°C | 24°C | 30°C |
| September | 18°C | 23°C | 28°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 13°C | 16°C |
| December | 8°C | 11°C | 14°C |
Achelous River: Water Temperature by Location
Achelous River: Weather Forecast
October 22
October 23
October 24
October 25
October 26
October 27
Location & Local Information
Source:
• location Pindus mountains
• coordinates 39°41′13″N 21°8′31″E
Mouth:
• location Ionian Sea
• coordinates 38°19′53″N 21°6′5″E
Length 220 km (140 mi)
The Achelous (Greek: Αχελώος), flowing through Epirus from the Pindus mountains toward the Ionian plain, shows marked seasonal and local variation in water temperature. In winter the river is cold, commonly around 4–8 °C (39–46 °F) in upland reaches fed by snowmelt; spring temperatures rise to roughly 6–14 °C (43–57 °F) as flows moderate. In summer lowland and sun-exposed pools typically warm to about 16–24 °C (61–75 °F), and on hot, shallow reaches temperatures can locally approach 26–27 °C (79–81 °F). Autumn cooling brings temperatures back toward roughly 10–18 °C (50–64 °F). Microclimates created by deep gorges, shaded canyons, or cold springs mean that temperatures can vary substantially over short distances.
Swimming is commonly possible in many accessible stretches of the Achelous, especially in calm bends and natural pools during summer, but it is not uniformly advisable everywhere. Local restrictions occasionally limit access near infrastructure or protected habitats, and strong currents, cold underflows, sudden depth changes and rising flows after rain pose safety risks. Water quality in rural Epirus is often good, yet swimmers should choose sheltered, frequently used spots, be aware of seasonal cold shock in shoulder seasons, and follow local guidance for safe swimming.